| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 12987 |
80.3%
|
| 2 | I have already stopped smoking cigarettes | 1289 |
8%
|
| 3 | Yes | 1475 |
9.1%
|
| 4 | No | 428 |
2.6%
|
| Sysmiss | 268 |